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- Add support for 6-node sub-NUMA clustering on Intel

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- Cleanup
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Merge tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cache resource control updates from Borislav Petkov:

 - Add support for 6-node sub-NUMA clustering on Intel

 - Cleanup

* tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Support Sub-NUMA cluster mode SNC6
  x86/resctrl: Slightly clean-up mbm_config_show()
This commit is contained in:
Linus Torvalds 2024-11-19 12:11:28 -08:00
commit 5a4b3fbb48
2 changed files with 3 additions and 2 deletions
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3
arch/x86/kernel/cpu/resctrl/monitor.c
View File

@ -1158,11 +1158,12 @@ static __init int snc_get_config(void)
ret = cpus_per_l3 / cpus_per_node; ret = cpus_per_l3 / cpus_per_node;
/* sanity check: Only valid results are 1, 2, 3, 4 */ /* sanity check: Only valid results are 1, 2, 3, 4, 6 */
switch (ret) { switch (ret) {
case 1: case 1:
break; break;
case 2 ... 4: case 2 ... 4:
case 6:
pr_info("Sub-NUMA Cluster mode detected with %d nodes per L3 cache\n", ret); pr_info("Sub-NUMA Cluster mode detected with %d nodes per L3 cache\n", ret);
rdt_resources_all[RDT_RESOURCE_L3].r_resctrl.mon_scope = RESCTRL_L3_NODE; rdt_resources_all[RDT_RESOURCE_L3].r_resctrl.mon_scope = RESCTRL_L3_NODE;
break; break;

2
arch/x86/kernel/cpu/resctrl/rdtgroup.c
View File

@ -1596,7 +1596,7 @@ static void mondata_config_read(struct rdt_mon_domain *d, struct mon_config_info
static int mbm_config_show(struct seq_file *s, struct rdt_resource *r, u32 evtid) static int mbm_config_show(struct seq_file *s, struct rdt_resource *r, u32 evtid)
{ {
struct mon_config_info mon_info = {0}; struct mon_config_info mon_info;
struct rdt_mon_domain *dom; struct rdt_mon_domain *dom;
bool sep = false; bool sep = false;